Gearing



Patented Jan. 3, 1922.

J. C. ROSS.

GEARlNG.

A APPLICATION man nEc.3o.192o. 1,402,094.

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I .l A

JOHN c. Ross, or AKRON, onro.

GEARNG.

renacer.

Specification of Letters Patent.

Patented Jan. 3, 1922.

Application filed December S0, 1920. Serial No. 434,100.

To all whom it may concern:

Be it known that I, JOHN C. Ross, a citizen of the United States, residing at Akron, in the county of Summit and State of Ohio, have invented certain new and useful 1mprovements in Gearings, of which the following is a specification.

This invention relates to gearing for transmitting power from a driving shaft to a plurality of driven members and has speical reference to matter originally shown, described and claimed in an application for patent filed by me, July 23, 1919, Serial No. 312,665. The invention is illustrated in the accompanying drawings and will be hereinafter fully set forth.

In the drawings- Figure 1 is a sectional elevation of gearing embodying my invention;

Figs. 2 and 3 are detail perspective views of certain clutch elements.

ln the drawings, the reference numeral 1 indicates a driving shaft which may receive power from any preferred motor and has secured thereon a gear 2 meshing with a master gear 3. r1`he hub 4 of the master gear is rotatably mounted upon the opposed ends of hubs 5 and 6 which are loosely fitted upon a shaft 7. Alined with the said shaft 7 are shafts 8 and 9 which may be operatively connected with the shaft 7 by clutches 10 and 11 respectively, adapted to engage clutch hubs 12 and 13, respectively, and these clutch members may be of any desired formation. ln the illustration, the member 12 is fixed upon the shaft 8 andthe clutch 10 is slidably mounted upon the end of the sha-ft 7, these members being provided with interengaging lugs, as shown at 14,`and the clutch' member being controlled by a shift` ing lever .15 which may be of any wellknown or preferred form. The clutch member 13 is fixed upon the end of the shaft 7, while the clutch 11 is slidably mounted upon the shaft 9 and is controlled by a lever 16 which may likewise be of any desired formation. It will be readily understood that it is .immaterial which member is slidably mounted upon its respective shaft and-either arrangement may be employed as maybe preferred. Y

The spokes 17 of the master gear are rotatably mounted in the hub and rim thereof and upon the said spokes are secured pinions 18 which mesh with gear rings 19 and 2O disposed at opposite sides of the master gear and carried by the hubs 5 Vand 6, respectively. The gear ring 20 is provided with gear teeth on bot-h its sides at its perimeter and one yseries of teeth meshes with the pinions 18, as shown and as stated, while the other series of teeth mesh with pinions 21 and 22 which are loosely mounted upon shafts 23 and24, respectively. `Upon the shaft 23 is keyed a clutch member 25 shiftable into and out of engagement with the clutch hub 26 of the gear 21 by the manipulation of any convenient lever which may be of any desiredtype and is not illustrated herein for the sake of clearness in the drawings. In a similar manner, a clutch sleeve 27 is mounted upon the shaft 24 and shifted into or out of engagement with the clutch hub 28 of the gear 22 and it will be rea-dily'understood that by properly adjusting the clutches 25' and 27 the gears 21 and 22 may be locked to their respective shafts so as to transmit motion throught-he shafts to machinery operatively connected therewith. 1t' will also be understood that the shafts 23 and 24 may be driven independently or simultaneously as may be needed. The hub 6 of the gear ring 2O is elongated so as to extend outwardly from the gear ring and pass througha stop boX 29 which also provides end bearings for the respective shafts 23 and 24, as shown at 30 and 31, the end of said stop boX being disposed adjacent the side of the gear ring20 so as to prevent endwise movement of the said gear ring and its hub 6. Bollerbearings 32 are disposed. within the said bon 29 around the hub 6 for an obvious purpose andthe outerend of said hub is constructed with'lugs or notches to beengaged by mating lugs or notches upon'a clutch collar 33 keyed upon the shaft 7 and controlled by a 'lever 34.4

. Near the' outer ends of the spokes 17 pinions 35 are secured thereto and thesepinions mesh with a circular rack or gear ring 36 carried by spokes 37 extending from a hub crsleeve 38 which isloosely mounted upon the shaft 7 beyond the hub 5, as clearly shown. The opposed ends of the hubs 5 and 38 are notched', as indicated at 39, and are adapted to be engaged by the lugs 40 at the opposite ends of a clutch sleeve 41 which slidably mounted upon a collar 42 keyed upon the shaft 7 between the opposed ends of the hubs' and 38, as clearly shown in Fig. 1. Upon the exterior circumferential surface of the collar 42 are longitudinal ribs 43 Vwhich are engaged by longitudinal grooves 44provided on the interior surface of the sleeve 41 so that the said sleeve will rotate with the collar and t-he shaft and may be adjusted longitudinally thereofV so as to couple either hub or both hubs to the collar. To adjust the sleeve 41, I provide a ring which is slidably mounted upon the outer end of the hub 38 and has secured thereto a plurality of fingers46 which extend between the spokes 37 of thefgear ring 36 and have their inner ends turned` 1nwardly, as shown at 47, to play in an annular groove 48 provided in the exterior surface of the sleeve 41, as clearly shown.Y A yoke 49 has its ends engaged in an annular groove 50 in the exterior surface of the ring 45 and this yoke is connected with a hand lever 5.1 so that the rocking -of the lever will shift the yoke and consequently the ring 45 and the sleeve 41 longitudinallywhereby to lock either or both of the gear rings 19 and 36 to Vthe shaft 7.

A brake drum 52 is connected rigidlywith the rack orgear ring 36 and a brake band 53 enelrcles the said drum and 1s controlled by a foot lever 54 in a well-known mannery `mitted to one of these points4 or to all kfour of them simultaneously. In the position shown, the gear ring 20 is locked to the shaft 7 by the clutch 33 controlled by the lever 34, and the gear rings 19 and 36 are both` c0upled tothe said shaft by the clutch sleeve 41 and collar 42 while the gears 2,1 and 22are also locked to their respective shafts. lfv the driving shaft be set in motion, power will be transmitted simultaneously to allk four driven elements. The shaft 8 or the shaft 9 maybe released so as to remain at.l `rest `by properly manipulating the lever 15 or the lever 16 and likewise the shaft 23 or y' the shaft 24 maybe permitted to remain at rest by'properly shifting the clutch 25 or drawn from the hub 6 and the clutch sleeve y 41 be also released from the hub`5,1 both gear rings 19 and'20 willjbe free upon the shaft while the gear ring 36 will' bel locked thereto, but the gear ring 2O will remain operatively connected with the shafts 23 and 24 and the power of the master gear will he transmitted` proportionately through the gear 2O'to the shafts 23 and 24 and through the gear ring 36 to the shaft from the outer pinions 35, a greater leverage being thus exerted through the gear 36 upon the shaft 7than if the gear ring 19 were alone'locked theV master wheel will be transmitted to said shaft through the inner pinions 1S, exerting` less leverage thanin the former instance.V

lilith the parts in the positions shown, there can'be no compensating or differentialh movement. lf the clutch 33 be moved'to inactivel position the member 20wi`ll be freed from the shaft 7 and may move differentially in respect to said shaft-` `f the clutch sleeve 41 be moved inward-ly so; as to f'reethegear ring 36 from the shaft 7, the powerwil-l hev divided equally betweenA the shaft f? and the parts driven by the gear ring 20, butL may be distributed unequally by applying either brake; The application of b'oth brakes will check the operationfentirely Aor overcomethe effect of any suddeirincrease inseed. ll y improved gearing is designed more particularly foruse upon tractors,the shaft Sbeing intendedto be Voperatively connected with theV rear propelling wheels, the shaft23- with the front'or steering wheel or wheels,

be driven when the tractor is stationary. Assumingthe clutches 11` 27 and 33 to be released, power will beapplied tothe shafts 7 vand 23, the Vgear 22A runningidle on the shaft 24 and the power applied to the shafts- 7 and 23Abeing divided according tothe leverf age exerted through the gearrings 36`and Y 20. If it be desired to apply the lpower equally to the shafts 7j andE 23, the clutch sleeve 41 isshfte'd tof release the hub` 38an`d engagelthe hub 5.- If it be desired toV applyV allV the power to theshaft 23-, the sleeve 41 isshiftedr to the position shown in the draw ing and the clutch v1-0 is released.` YThis -adjustment will be advantageous when it is desired to make a short turn lwith the trac tor. To transmit alltheppower to the shaft 8, the clutch 25'is withdrawn and the vclutch 10 is engaged?. Obviously, with the sleeve- 41 engaging bothhubsl and'38, all` the power may be transmitted through the shaft 7 to any one point by properly 'adjusting the clutches .10, 11, 2'5" and127. 1iWhenl the clutch 33 is thrown' inv operative position,

the lever V34 assists inA carrying the strain.y

between the gearrings 1,9t and 36. Should it be desired `to. turn quickly without using the hand levers, the brakes 53A and'` 56v are utilized to differentiate. Y rllhe clutches 11 -`10c and the shafts 9 and A241 with machinery 'to and 27 are normally open. Assuming the clutch 33 to be released and the sleeve 4l to be engaged with the hub 38 and free from the hub 5, if the brake 53 be applied a greater proportion of the power will be utilized through the shaft 23 or at the front end of the machine while if the brake 56 be applied a greater proportion of the power will be utilized through the shaft 8 or at the rear end of the machine. If both brakes be applied, the travel of the machine will be checked and may be completely stopped.

f the clutch 33 be released and the clutch al shifted free of the hub 5 and into full engagement with the hub 38, there will be a differentiation of the power between the shafts 7 and 23 in the same ratio that the gear ring 36 bears to the gear ring 20.

Having thus described the invention, what is claimed as new is:

l. The combination of a driving shaft, a driven shaft, a master gear rotatable about the driven shaft and actuated directly by the driving shaft, concentric gear rings f loose upon the driven shaft, means carried by the master gear for actuating said gear rings, and means for 'coupling either or both said gear rings to the driven shaft.

2. In gearing, the combination of a driving shaft, a master-gear driven directly by the driving shaft, a driven shaft concentric with the master gear, other shafts disposed parallel with the plane of the master gear, an intermediate gear operatively connected with the master gear, means for operatively connecting said intermediate gear with either or both the last-named shafts, means for connecting the said intermediate gear with the first-mentioned driven shaft, and other means for operatively connecting the master gear with the said driven shaft.

3. In gearing, the combination of a driving shaft, a master gear actuated directly by the driving shaft, a driven shaft about which the master gear is loosely mounted, gear rings loosely mounted upon the driven shaft and provided with clutch hubs on their opposed sides, a clutch member disposed be'- tween said clutch hubs and adapted to couple either or both to the driven shaft, and means for adjusting saidY clutch member.

t. The combination of a driving shaft, a driven shaft, a master gear mounted loosely about the driven shaft, gear rings having their hubs disposed loosely upon the driven shaft and within the hub of the master gear, a third gear ring loosely fitted upon the driven shaft and having a clutch hub opposed to the hub of oneof the first-mentioned gear rings, a clutch member disposed between the said hubs and adapted to engage the ends of the same whereby to lock either or both to the driven shaft, means for adj usting said clutch member, a brake drum carried by the last-mentioned gear ring, a brake drum carried by that one of the rst-mentioned gear rings disposed at the opposite side of the master gear, and brake bands adapted to co-operate with said brakeV drums.

JOHN o. Ross. [L s] 

